<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/base.css">
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .header{
            border: 1px solid #f60;
        }
        .header .header_center{
            height: 42px;

        }
        ul li{
            float:left;
            margin-left: 50px;
            margin-top: 15px;

        }
        ul li a{
            text-decoration: none;
           list-style-type: none;
            font-size: 14px;
        }
        .header_center ul li a span{
            padding: 0 60px;
        }
    </style>
</head>
<body>
<div class="header w42 clearfix">
    <div class="header_center w960 mAuto">
        <ul>
            <li><a href="#">首页</a>
                <span>|</span>
            </li>

            <li><a href="#">网站建设</a>
                <span>|</span>
            </li>
            <li><a href="#">程序开发</a>
                <span>|</span>
            </li>
            <li><a href="#">网络营销</a>
                <span>|</span>
            </li>
            <li><a href="#">企业UI</a>
                <span>|</span>
            </li>
            <li><a href="#">案例展示</a>
                <span>|</span>
            </li>
            <li><a href="#">联系我们</a></li>
        </ul>
    </div>
    </div>

</body>
</html>